KIAWAH ISLAND — Aaron Given trudged through frigid, ankle-high water as dawn climbed lazily over the eastern horizon, tinting the salt marshes golden-red as it bloomed. The sun offered little ...

The North Carolina Coastal Federation is partnering with two private firms to build a one-acre salt marsh to serve as a "donor marsh" for scarce native salt marsh plants coastal restoration projects.

See the rest of the series. Maine salt marshes are a key tool in the fight against climate change, acting as a buffer against storms and soaking up planet-warming emissions. These reservoirs of ...